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ieee1394: inherit ud vendor_id from node vendor_id

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While Module_Vendor_ID in the configuration ROM's root directory is
mandatory, there often aren't vendor IDs in unit directories.  This
affects the new firedtv driver which is meant to be auto-loaded and
matched only for vendor-specific devices.

We now always copy ne->vendor_id into ud->vendor_id before we scan a
unit directory (and fill in a possibly present vendor ID from there).
This way, the root directory's vendor ID is used as fallback in the
"uevent" environment for modprobe'ing per module alias when a node was
plugged in, and in the driver match routine when protocol drivers are
bound to unit directories.  It will however not be used as sysfs
attribute of a unit directory device.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Stefan Richter 2008-08-27 01:24:25 +02:00
parent b33fdd6ca5
commit 9c939e4df4
1 changed files with 3 additions and 0 deletions
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3
drivers/ieee1394/nodemgr.c
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@ -971,6 +971,9 @@ static struct unit_directory *nodemgr_process_unit_directory
ud->ud_kv = ud_kv;
ud->id = (*id)++;
/* inherit vendor_id from root directory if none exists in unit dir */
ud->vendor_id = ne->vendor_id;
csr1212_for_each_dir_entry(ne->csr, kv, ud_kv, dentry) {
switch (kv->key.id) {
case CSR1212_KV_ID_VENDOR: